When waiting for my mother to try on a dress in a department store in Kyoto…

Salesgirl, to me: 旅行ですか? (Are you on a trip?)

Me: はい、そうです。 (Ah, yes.)

Salesgirl: えぇ！わかりますか？！(Eh! You understand [Japanese]?!)

If she thought I didn’t understand Japanese, why speak to me in Japanese in the first place? lol.